Lexus LS IV (2006-2012) center junction block j/b 4 (right side of dash) Wiring diagrams

2 1 4 3 TDC- TDC+ TCS 4-SEATER, W/O 5-SEATER OTTOMAN 5 SEATER W/ OTTOMAN BACK SEAT BBS BCS BFB+ BBS BFB- BFB- BFC+ BCS BFC- TDC- TDC+ TDB- TDB+ VER GND LIN BFC- BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CLIMATE CONTROL REAR SEAT COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM FUSE GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES IG SYSB INTEGRATION CONTROL, PANEL ASSEMBLY LT GRN WIRE MPX ORG/ WIRE P MPX B FUSE P RR S/HTR FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK HS WIRE PNK WIRE REAR SEAT CLIMATE CONTROL SWITCH INDICATOR RED WIRE RED/BLK WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT REAR SEAT CLIMATE CONTROL ECU RIGHT REAR SEAT CLIMATE CONTROLLER SEAT BACK (RIGHT REAR SEAT BACK) RIGHT REAR SEAT CLIMATE CONTROLLER SEAT CUSHION RIGHT REAR SEAT CLIMATE FAN MOTOR SEAT BACK (RIGHT REAR SEAT BACK) RIGHT REAR SEAT CLIMATE FAN MOTOR SEAT CUSHION RIGHT REAR SEAT HEATER (RIGHT REAR SEAT BACK) SEAT CUSHION WING INNER SEAT CUSHION) SIDE SWITCH TBS TCS TBS TDB+ VIO WIRE WHT WIRE WHT/BLK WIRE WING OUTER SEAT CUSHION YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 IG SYSB BACK SEAT BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE BVR CANN CANP CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM FUSE GND LIN GRN WIRE GRY WIRE HOT AT ALL TIMES INTEGRATION CONTROL, PANEL ASSEMBLY L VR LEFT REAR SEAT CLIMATE CONTROL ECU LEFT REAR SEAT HEATER (LEFT REAR SEAT BACK) LIN LUGGAGE ROOM J/B MPX OF DASH) P MPX B FUSE P RR S/HTR FUSE PASSENGER SIDE J/B (RIGHT END PASSENGER SIDE J/B (RIGHT END OF DASH) PNK HS WIRE PNK WIRE R VR REAR CONSOLE SWITCH REAR CURTAIN SWITCH ASSEMBLY REAR SEAT CLIMATE CONTROL SWITCH RED WIRE RELAY ENERGIZED RIGHT REAR SEAT CLIMATE CONTROL ECU RIGHT REAR SEAT HEATER (RIGHT REAR SEAT BACK) RR MPX-B 2 FUSE SEAT BACK) SEAT CUSHION WING INNER SIDE SEAT CUSHION WING OUTER SIDE SEAT CUSHION) SIDE SIDE WING INNER VER GND LIN VIO WIRE WHT GRN/ WIRE WHT WIRE WHT/BLK WIRE WING OUTER SEAT CUSHION YEL WIRE

1 FUSE 2 FUSE 4 FUSE A/C FUSE ACCD AIR CONDITIONING NAVIGATION SYSTEM SYSTEM AIR SUS RELAY ANTI-LOCK BRAKES, CRUISE CONTROL SYSTEMS BLK WIRE BLU WIRE CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CRUISE CONTROL, SUPPLEMENTAL RESTRAINTS SYSTEMS D P/ SEAT FUSE D RR S/HTR FUSE D S/HTR FUSE D-ACC RELAY DEFOGGER SYSTEM ELECTRONIC SUSPENSION SYSTEM FROM FUSIBLE LINK BLOCK ASSEMBLY 1 (DIAGRAM 1 OF 6) FROM FUSIBLE LINK BLOCK ASSEMBLY 2 (DIAGRAM 1 OF 6) FROM SHORT CONNECTOR (CIGARETTE LIGHTER) (DIAGRAM 3 OF 6) FRONT CIGARETTE LIGHTER FRONT POWER FUSE GRN WIRE GRY WIRE INTERIOR LIGHTS, DEFOGGER, MEMORY, POWER WINDOWS, DOOR LOCKS, ANTI-THEFT SYSTEMS LT GRN WIRE MAIN BODY ECU MEMORY SYSTEMS NAVIGATION, SOUND, INSTRUMENT CLUSTER SYSTEMS (LEFT SIDE OF DASH) P ACC RELAY P CIG FUSE P RR S/HTR FUSE P-ACC FUSE PANEL RELAY PASSIVE RESTRAINT SYSTEM PNK WIRE POWER TOPS SYSTEM PWR OUTLET FUSE D ACC FUSE RELAY S/ROOF FUSE SEATS SYSTEM SHORT CONNECTOR (CIGARETTE LIGHTER) (LEFT CENTER OF DASH) SOCKET TO FRONT CIGARETTE LIGHTER (DIAGRAM 3 OF 6) TI&TE FUSE TO LUGGAGE ROOM J/B (DIAGRAM 4 OF 6) TO P S/HTR FUSE (DIAGRAM P/SEAT 1 4 OF 6) FUSE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 11 3 6 9 10 GND CPUB SIG BDR CANP CANN 1 4 3 CLM+ CLM- DLSE 1 5 CLM+ CLM- 15 7 9 8 19 18 6 5 PNK CPSE POLE FULL STOP HNDL INIT WIRE 15 7 9 8 24 16 4 3 PNK CPSE POLE FULL STOP HNDL INIT WIRE BLK WIRE BLU WIRE CANP CANN CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM D RR DOOR FUSE DOOR 1 FUSE DOOR 2 FUSE DRIVER SIDE J/B (LEFT END OF DASH) FORMER POSITION SWITCH FORMER POSITION SWITCH DLSE FUSE GND BCUT SIG BDR CPUB GRN WIRE GRY WIRE H/FU HANDLE SWITCH HANDLE SWITCH STOP TEMPORARY STOP SWITCH H/FU SECONDARY/ FULL LATCH SWITCH POLE HOT AT ALL TIMES LEFT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (DRIVER'S DOOR) LEFT FRONT MULTIPLEX NETWORK DOOR ECU (DRIVER'S DOOR) LEFT REAR DOOR LOCK ASSEMBLY (LEFT REAR DOOR) LEFT REAR MULTIPLEX NETWORK DOOR ECU LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MPX-B 1 FUSE ORG/ WIRE PNK WIRE POLE SWITCH 6 8 POLE CPSE POLE SWITCH PNK CPSE WIRE RED WIRE RELAY ENERGIZED RR MPX-B 2 FUSE STOP SECONDARY/ FULL LATCH SWITCH TEMPORARY STOP SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

15 16 10 CANN CANP 9 10 8 COMPUTER DATA LINES SYSTEM CANP CANN BLK WIRE BLU WIRE BRN WIRE CANN CANP CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CERTIFICATION ECU ASSEMBLY (LEFT END OF DASH) CLS CLOSE COMBINATION METER COMPUTER DATA LINES SYSTEM D MPX-B 2 FUSE DCTY DOOR CONTROL RECEIVER (RIGHT REAR OF LUGGAGE COMPT) DOWN DOWN DRIVER SIDE J/B (LEFT END OF DASH) DRIVER'S DOOR ELECTRICAL KEY ANTENNA (RIGHT "C" PILLAR) ENGINE ROOM J/B 2 FUSE GND RSSI ASEL DATA +5 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START J/C KEY LOCK KUL LEFT FRONT MULTIPLEX NETWORK DOOR ECU LOCK ASSEMBLY LSWE MAIN BODY ECU (LEFT END OF DASH) MASTER IND MICRO COMPUTER MPX-B NCA WIRE OPN OPN DWN CLS UP P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK KL WIRE PNK WIRE RDA ASEL RSSI CANP CANN RED WIRE S/ROOF FUSE SLIDING ROOF CONTROL SWITCH OVERHEAD MODULE (ROOF CONSOLE) SLIDING ROOF ECU (ROOF CONSOLE) SUPPLY POWER UL KEY UNLOCK UP UP WHT WIRE WHT/BLK WIRE YEL WIRE

15 16 6 5 CANN CANP CANL CANH 2 3 4 5 6 +5 DATA ASEL RSSI GND 2 7 OPN CTY CLS +B FSW M+ M- 28 20 CANN CANP 4 17 PGND SG ASEL BLK WIRE BLU WIRE BRN WIRE CANN CANP CENTER JUNCTION BLOCK J/B 3 CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CERTIFICATION ECU ASSEMBLY (LEFT END OF DASH) COMPUTER DATA LINES SYSTEM D-ACC FUSE DATA LINES COMPUTER DOOR CONTROL RECEIVER (RIGHT REAR OF LUGGAGE COMPT) DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START LCTY LGLB LOPN LPSW PAWL LT BLU WIRE LUGGAGE COMPARTMENT DOOR LOCK CYLINDER (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH ASSEMBLY LUGGAGE DOOR CLOSER ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE DOOR OPENING SWITCH ASSEMBLY LUGGAGE ELECTRICAL KEY SWITCH (CENTER REAR OF LUGGAGE COMPARTMENT LID) LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU MPXB PASSENGER SIDE J/B (RIGHT END OF DASH) POWER TRUNK LID CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) POWER TRUNK LID CONTROL SWITCH PTL FUSE REAR JUNCTION BLOCK ECU RED WIRE RED/BLK WIRE RR MPX B 1 FUSE RR MPX-B 2 FUSE RSSI SECURITY FUSE SYSTEM TKUL TMSW TSW VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 11 3 CANP CANN 1 2 3 4 5 6 SSA- SSA+ SHSE SHSB 10 9 6 11 3 1 CANN CANP BDR CPUB SIG GND 4 SEATER, 5 SEATER, W/O OTTOMAN 5 SEATER W/ OTTOMAN 6 3 11 9 10 1 BDR SIG CPUB CANP CANN GND BLK WIRE BLU WIRE CANP CANN CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM D RR DOOR FUSE DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES PASSENGER P MPX B SIDE J/B FUSE (RIGHT END OF DASH) HOT IN ON OR START INTEGRATION CONTROL, PANEL ASSEMBLY LEFT REAR CURTAIN SUB-ASSEMBLY LEFT REAR MULTIPLEX NETWORK DOOR ECU (LEFT REAR DOOR) LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MPX P MPX B FUSE P RR DOOR FUSE REAR CONSOLE SWITCH (4-SEATER) REAR CONSOLE SWITCH (5-SEATER) REAR CURTAIN SWITCH ASSEMBLY REAR DOOR) REAR SUNSHADE SWITCH RED WIRE RIGHT REAR CURTAIN SUB-ASSEMBLY RIGHT REAR MULTIPLEX NETWORK DOOR ECU (RIGHT REAR DOOR) RR MPX-B 2 FUSE SHSB SHSE SSA+ SSA- SWITCH SUNSHADE SWITCH SUNSHADE REAR DOOR WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 11 3 CANP CANN 1 2 6 5 CANP CANN 20 28 CANP CANN 22 4 3 LMT MU MD 4 SEATER, 5 SEATER, W/O OTTOMAN 4-SEATER 5-SEATER 5 20 GND 5 SEATER W/ OTTOMAN 8 7 5 15 IG MPXB RSB LGLB BLK WIRE BLU WIRE BRN WIRE CANH COMPUTER DATA LINES SYSTEM CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION SWITCH ASSEMBLY COMPT) COMPUTER DATA LINES SYSTEM FUSE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) INTEGRATION CONTROL, PANEL ASSEMBLY LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE MPX P MPX B FUSE PARK/NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK RSMD WIRE PNK WIRE REAR CONSOLE SWITCH (4-SEATER) REAR CONSOLE SWITCH (5-SEATER) REAR CURTAIN SWITCH ASSEMBLY REAR JUNCTION BLOCK ECU REAR SUNSHADE SWITCH REAR WINDOW SHADE ASSEMBLY RR MPX B 1 FUSE RR MPX-B 2 FUSE RR S/SHADE FUSE RSE RSL RSMU SUNSHADE REAR SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 IG 22 23 CANP CANN BLK WIRE BLU WIRE BRN WIRE CANN CANP GND INSW RDA CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM FUSE HOT AT ALL TIMES DRIVER SIDE J/B (LEFT END OF DASH) D MPX-B 2 FUSE HOT IN ON OR START MASTER IND MICRO COMPUTER P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY RED WIRE TIRE PRESSURE IND TIRE PRESSURE WARNING ANTENNA, RECEIVER (CENTER REAR OF ROOF) TIRE PRESSURE WARNING ECU (RIGHT END OF DASH) TIRE PRESSURE WARNING RESET SWITCH VIO WIRE WHT WIRE YEL WIRE

13 14 COMPUTER DATA LINES SYSTEM CANL CANH 15 16 CANN CANP 15 22 6 IG 28 20 CANN CANP 4 17 PGND SG 5 6 24 22 20 9 2 1 7 CANL CANH LOPN LCTY PAWL BDCY LCM+ LCM- HALF BLK WIRE BLU WIRE CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CLS COMPUTER DATA LINES SYSTEM CTY D-ACC FUSE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) FSM FUEL FUEL LID COURTESY SWITCH FUEL LID WITH MOTOR LOCK ASSEMBLY (BEHIND LEFT REAR WHEELWELL) FUEL OPN FUSE FUO FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START LGLB LT GRN WIRE LUGGAGE LUGGAGE COMPARTMENT DOOR LOCK CYLINDER (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH ASSEMBLY LUGGAGE DOOR CLOSER ASSEMBLY (CENTER REAR OF LUGGAGE COMPARTMENT LID) LUGGAGE DOOR OPENING SWITCH ASSEMBLY LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU DRIVER SIDE J/B (LEFT END OF DASH) MPXB OPN PASSENGER SIDE J/B (RIGHT END OF DASH) PNK LIDO WIRE PNK WIRE POWER TRUNK LID CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) REAR JUNCTION BLOCK ECU RED WIRE RED/BLK WIRE RR MPX B 1 FUSE RR MPX-B 2 FUSE TKUL TMSW TSW VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE